How to configure Virtual Router Redundancy Protocol (VRRP) for IPv6 clients on DELL EMC Networking OS10 switches

Summary: How to configure Virtual Router Redundancy Protocol (VRRP) for IPv6 clients on DELL EMC Networking OS10 switches

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Symptoms

Table of Contents

What is VRRP
Requirement
Configuration
Sample IPv6 VRRP setup
Topology
Sample Output
Verify that VRRP is working.
 

What is VRRP


VRRP allows us to configure virtual routers from groups of physical routers/layer three switches on a LAN. These virtual routing platforms form primary and backup pairs. VRRP helps us to avoid a single point of failure of a routers/layer three switches in the network.
 

Requirement


By Default OS10 is having VRRP version 2. We must configure VRRP Version 3 on switches to support IPv6. Changing the VRRP version in a switch must be done with proper planning. Click here for more details on VRRP Version 3
 

Configuration

 
Command Purpose
OS10-Switch1# configure terminal Enter Configure Mode
OS10-Switch1(config)# vrrp version 3 Configure a VRRP version for the system
OS10-Switch1(config)# interface vlan <ID>/Interface <Port> Configure Vlan/Interface
OS10-Switch1(conf-if-XX-X)# ipv6 address <IPv6> Configure IPv6 IP address
OS10-Switch1(conf-if-XX-X)# vrrp-ipv6-group <ID> Enter a VRRP group identification number (1 to 255)
OS10-Switch1(conf-XX-vrid-v6-Y)# virtual-address <IPv6 address> Configures virtual router IPv6 addresses
OS10-Switch1(conf-XX-vrid-v6-Y)# priority <Priority> Set a virtual router priority  <Value 1 - 254, default 100> (Optional)
OS10-Switch1(conf-XX-vrid-v6-Y)# advertise-interval <Interval> Change the advertisement interval setting <Value Centiseconds : 25 - 4075, default 100> (Optional)
 


Sample VRRP IPv6 Setup


To demonstrate the configuration of VRRP lets use a sample topology.

IPv6 address is configured in vlan 1 on both VRRP peers.
IPv6 address on vlan 1 in Switch 1: 1000::1/64
IPv6 address on vlan 1 in Switch 2: 1000::2/64
IPv6 Virtual Address of VRRP:         1000::1000
VRRP Priority on Switch 1:               150
VRRP Priority on Switch 2:               200 =>This causes the switch 2 to be elected as primary.

The Switch 1  Vlan 1 IPv6 address is able to ping to Switch 2  Vlan 1 IPv6 address
 

Topology


SLN319048_en_US__1image(13350)

 

 

Cause

Sample Configuration


OS10-Switch1

 OS10-Switch1# configure terminal
OS10-Switch1(config)# vrrp version 3
OS10-Switch1(config)# interface vlan 1
OS10-Switch1(conf-if-vl-1)# ipv6 address 1000::1/64
OS10-Switch1(conf-if-vl-1)# vrrp-ipv6-group 1
OS10-Switch1(conf-vlan1-vrid-v6-1)# virtual-address 1000::1000
OS10-Switch1(conf-vlan1-vrid-v6-1)# priority 150

OS10-Switch1# show running-configuration interface vlan 1
!
interface vlan1
 no shutdown
 ipv6 address 1000::1/64
 !
 vrrp-ipv6-group 1
priority 150
virtual-address 1000::1000

 

OS10-Switch2

OS10-Switch2# configure terminal
OS10-Switch2(config)# vrrp version 3
OS10-Switch2(config)# interface vlan 1
OS10-Switch2(conf-if-vl-1)# ipv6 address 1000::2/64
OS10-Switch2(conf-if-vl-1)# vrrp-ipv6-group 1
OS10-Switch2(conf-vlan1-vrid-v6-1)# virtual-address 1000::1000
OS10-Switch2(conf-vlan1-vrid-v6-1)# priority 200

OS10-Switch2# show running-configuration interface vlan 1
!
interface vlan1
no shutdown
ipv6 address 1000::2/64
!
vrrp-ipv6-group 1
priority 200
virtual-address 1000::1000

Resolution

Verify that VRRP is Working


Use the command show vrrp brief and show vrrp ipv6 <VRRP ID> to verify if VRRP is working as expected

OS10-Switch1

SLN319048_en_US__2image(13367)


OS10-Switch2

SLN319048_en_US__3image(13368)

NOTE:  VRRP uses preempt to determine what happens after a VRRP backup router becomes the primary. Click here for more details on Preemption 
 

Affected Products

PowerSwitch S3048-ON, PowerSwitch S4048-ON, PowerSwitch S4810-ON, Dell EMC Networking MX5108n, Dell EMC Networking MX9116n, PowerSwitch S4048T-ON, PowerSwitch S4112F-ON/S4112T-ON, PowerSwitch S4128F-ON/S4128T-ON , PowerSwitch S4148F-ON/S4148T-ON/S4148FE-ON, PowerSwitch S4148U-ON, PowerSwitch S4248FB-ON /S4248FBL-ON, PowerSwitch S5148F-ON, PowerSwitch S5212F-ON, PowerSwitch S5224F-ON, PowerSwitch S5232F-ON, PowerSwitch S5248F-ON, PowerSwitch S5296F-ON, PowerSwitch S6100-ON, PowerSwitch Z9100-ON, PowerSwitch Z9264F-ON, SmartFabric OS10 Software ...
Article Properties
Article Number: 000134676
Article Type: Solution
Last Modified: 11 Oct 2023
Version:  5
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